Antifriction lateral-motion center-bearing.



No. 871,200. PATENTED NOV. 19- 1907.

J. G. BARBER.

ANTIFRIOTION LATERAL MOTION CENTER BEARING.

APPLIOATION FILED JULY 26. 1906.

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JOHN G. BARBER, OF CHICAGO, ILLINOIS.

siv'rrrn'rorron LATERAL-MOTION.CENTER-BEARING.

Specification of-Letters Patent.

Patented Nov. 19, 1907.

Application filed July 2&1906. Serial No. 327.936.

To all whom it may concern:

Be it known that 1, JOHN C. BARBER, a citizen of the United States, residing at ,Chicago, in the county of Cook and State of Ilhnois, have invented certain new and use. 'ful Improvementsin Antifriction Lateral- Motion Center-Bearings; and I do hereby 1 declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ippertains to make and use the same.

1 indicate present invention has for its object to provide a simple and eflicientanti-friction.

ateral motion center bearing for railway cars, and the like, and to this end it consists of the novel devices and combinations of devices. hereinafter described and defined in the claims; I

' Theinvention is illustrated in the accomanying drawings wherein like characters the body bolster of a car into a truck'bolster,

some parts being broken -away. Fig. 2 is a ower bearing member of the lateral motion device, some plan view showing the truck bolster and the.

arts being broken away and some parts be ng in section, and Fig. 3 is a view partly in end elevation and partly in vertical section on the line m x of Fig. -1, some partsbeing broken away.

The numeral 1 indicates the body bolster of a, car, and the numeral 2 indicates the truck bolster, which latter, as shown, is in the form of a channel shaped casting of steel or malleable iron, but which may be otherwise constructed. At its central portion the truck bolster 2. has an elongated slot 3 which is'approximately at the center of a raised rectangular flange 4 shown as cast integral with the said bolster 2, and

which flange and the central portion of the top of said bolster afford an openseat that is adapted to receive a rectangular plate 5 I that constitutes the lower bearing member of the lateral motion device.

' member 5-, which is preferably a steel cast- .ing, is at its central ortion formed with an elongated slot 3 t at registers ,with the slot} before noted.

I like parts throughout the. several views;

This bearing- ;.-"The'flupper center bearing member 6 is directly secured to the body bolster 1, and,

is )referably also in the form of a steel or ma leable iron casting. At its center this upper bearing member 6 is provided witlra depending sleeve 7 that affords a seat for the center bearing (pintle 8 and which n pintle ro- 160135 downwar through the coincident s ots 3 and 3.

Interposed between the above noted bearing members 5 and 6 is an intermediate bearing plate or member 9, that constitutes the u per bearing member of the lateral motion cvice and the lower .bearin member of the center bearing proper. his intermediate bearing plate '9 is provided with a.

cent rall located sleeve portion 10 into which t 1e depending sleeve 7 of the u per bearing member 6 is telescoped, an in which it works pivotally.

Anti-friction bearing devices are interposed between the lower bearing member 5 and the intermediate bearing member 9, and also between said intermediate bearing member 9 and the upper bearing member 6. These anti-friction devices in the first instance are in the form of cylindrical rollers 11 and 12, and in the second instance they are in the form of conical rollers 13. The bearing rollers ,11 are disposed in pairs on opposite sides of the pivotal axis of the center bearing, and .are arranged to work in bearing seats 14 and 14 formed respectively in the upper surface of the lower hearing member 5 and in the lower surface of the intermediate bearing member 9. The hearing rollers 12 are relatively short as compared with the rollers 11, and they are 10- cate'd parzfllel thereto in axial alinement with eachbther, one in the front and one in the rear of the pivotal axis of the center bearing. Otherwise stated, the axes of the said short rollers when in normal or intermediate positions, intersect the axis of the pintle 8 at an angle of 90 degrees, and under movements of the two bolsters transversely of the truck, said rollers 12 move slightly from one side to the other of the position just stated. These short rollers 12 work in correspondingly short seats 15 and 16 formed respectively in the central portions of the upper surface of the lower bearing member 5 andjn the under surface of the intermediate bearing member 9. The roller bearing seats 14, 14 ,15 andlfi are concaved longitudil provided with trunnions 22 that project nally of the truck bolsters so as to permit a i lateral movem 'ent ofthe intermediate bearmg member 9, upper bearing member 6 and body bolster 1 transversely'offthe truck, or

otherwise stated longitudinally of the truck bolster 2.

In the best form of the device the so-called concave -bearing surfaces-of the roller seats are formed on inclined straight'lines in reverse directions from the center ortion of the lseats. The side walls of-t .e pocket formed by the bolster flange 4 guide the in jerrfiediate or traveling bearing member 9 for straight line movements transversely of .the truck, and the end walls of said pocket or flange engage the'ends of said bearing member 9 and limit its traveling movement. As is evident, it is necessary to place, the inner members ofthe long rollers 11 at a very considerable distance apart in order to ermit the. clearance for the'pintle 8 under ongitudinal movements of the bolsters with respect to eachother transversely of the.

truck. -By placing the longitudinally spaced axially alined short rollers .12 between the innermost long rollers 11, the center bearing deviceis muchmore firml supported, and

the bearing members 5 an 9 are much less liable -to be broken under the weight of heavy loads.

The conical bearing rollers 13 are radially disposed with respect to the axis of the center"bearing, or in other words, with respect to the axis of the pintle 8, and they move on the annular bearing surfaces 17 and 18 respectively on the under surface of the upper bearing member 6 and on then per surface of the intermediate bearing mem er 9. The said bearing surfaces 17 and 18 are of such conical form that they properly engage the interposed conical rollers 13 from end to end.

that surrounds the stop flange or shoulder 20 of the said bearing member 9.

The conical bearing rollers 13, as shown, are coupled together and s aced apart by a novel device disclosed ant claimed in my pending application, 3 N. 321,153, filed June 11th, 1906, entitled Anti-friction "center bearing for cars. This spacing and coupling device mayztherefore in this ap lication' be briefly noted as follows: The sai conical rollers 13 at their inner ends are, as shown,

Also as through a coupling ring 23, which rin is supprorted by the said trunnions, an works eely in annular recesses formed in the bearing members 6 and 9. .Pins 24 pass .through the inner-guarding projecting ends of the trunnions 22 holding the said rollers coupled to saidring 23-, when the said'rollers and ring are removed from a working position.

A lateral-motion center bearing of the character above described permits the desired lateral movement of the car body with res ect to the trucks, or vice versa, and itma es it unnecessary to mount the truck bolster for transverse movementswith re-.

spect to the truck frame.- In fact, with this arrangement the truck bolster may be rigidly secured to the truck frame, but preferably and usually it would be spring mounted for vertical movements. onthe truck frame but would be held against endwise movements transversely thereof.

-What I claim is:

1.TIn a lateral motion center bearing, the combination with upper, lower and intermediate bearing members, said upper and inter-- mediate bearing members having a' pivotal movement with respect to each other, and 7 said intermediate and lower bearing mem bers having a traveling. movement transversely of the truck, of relatively long and short bearing rollers interposed between said intermediate and lower bearing members, said relatively short rollers being located one in front and the other in the rear of the pivota'l axis of thecenter bearing, substantially as described. q I

' 2. In a lateral motion center bearing, the combination with upper, lower and intermediate bearing members, said upper and intermediate bearing members having a pivotal movement with respect to each other, and said intermediate and lower members having a traveling movement with respect to each other transversely of the truck, of relatively long and short bearing rollers interposed between said intermediate and lower bearing members and engaging concaved seats there in, said long bearing rollers being arranged on opposite sides of the pivotal axis of the center bearing, and said short rollers being located one in front and the other in the rear of the pivotal. axis of said center bearing, substantially as described. 3. In a lateral motion center bearing,'the combination with upper, lower and interme diate bearing members and a'pintle passed ,therethroug'h, said upper and intermediate I bearing members having a pivotal movement with respect to each other, and said intermediate and lower bearing mer'nbers having atraveling movement with respect to each other transversely of-the truck, of relatively long and short bearing rollers interosed between said intermediate and lower l In testimony whereof I aflix my signature earin menlbelg 1and bengaging 11conegaved l in presence of two witnesses.

seats t erein, sai on earin ro ers eing arranged on opposite sides of tie said pintle, JOHN E and said short rollers being located one in Witnesses:

front and the other inthe rear of said pintle, E. W. WEBB,

substantially as described. LEE W. BARBER. 

